Install gem-doc by entering the following commands in the terminal:
sudo apt update sudo apt install gem-doc
Description:
Graphics Environment for Multimedia (documentation)
Gem is a loadable library for Pure Data (Pd), which adds OpenGL graphics rendering and animation to Pd. Pd is a graphical programming language and computer music system. . This package includes the documentation for Gem.
Homepage: https://gem.iem.at/
Version: 1:0.93.3-13
Section: universe/doc